Specifications:

• Doorbell Type: wireless
• Working frequency: 433MHz
• Volume: 0~110dB
• Use of premises: Home office villa hospital school factory store shop
• Type: Doorbells
• Sensor power supply: 3*AAA alkaline battery(not included)
• Sensor angle: 2~8M (Varies from occasions, related to ambient temperature)
• Remote Controller power supply: CR2025 lithium battery(not included)
• Receiving distance: 280M Remote (in open area)
• Receiver power supply: 110-220V
• Power Source: Battery
• Power Source: AC
• Model Number: M86
• Brand Name: CACAZI